This is the Duratrax 4000mAh 7.4V 25C Stick LiPo Battery
with Star Plug.

FEATURES

Works great for DuraTrax motorcycles as well as other cars, trucks
and boats or any other application requiring a stick pack with a
Prewired with Star Plug
Star plug is compatible with the R/C industry's most commonly used
polarized power plug, tapered shape and grip strips for fast and
easy connection and separation
Protective ABS case has the same dimensions as a six cell NiMH stick
pack
Wired for balancing with JST XH (ElectriFly Style) balance plug

ALWAYS use a LiPo-approved Charger
ALWAYS use a LiPo Cell Balancer
NEVER Charge over 4.2V per cell
NEVER Charge at currents greater than 1C
NEVER Trickle Charge
NEVER allow to Discharge below 2.5V per cell
NEVER disassemble or modify pack wiring in any way or puncture cells
NEVER place on combustible materials or leave unattended during
charging
ALWAYS Charge in a fireproof location
ALWAYS set charger's output volts to match battery volts
ALWAYS keep out of reach of children
All weights include wire leads and plugs
All weights +/- 1 g
All measurements +/- 1 mm